Chapter 5 – Extracting Features with Transformers
by Sebastian Raschka, Robert Layton, Martin Czygan, Phuong Vo.T.H, Fabrizio Romano,
Python: Real-World Data Science
- Data Science with Python
- Table of Contents
- Data Science with Python
- Meet Your Course Guide
- What's so cool about Data Science?
- Course Structure
- Course Journey
- The Course Roadmap and Timeline
- 1. Course Module 1: Python Fundamentals
- 1. Introduction and First Steps – Take a Deep Breath
- A proper introduction
- Enter the Python
- About Python
- What are the drawbacks?
- Who is using Python today?
- Setting up the environment
- What you need for this course
- How you can run a Python program
- How is Python code organized
- Python's execution model
- Guidelines on how to write good code
- The Python culture
- A note on the IDEs
- 2. Object-oriented Design
- 3. Objects in Python
- 4. When Objects Are Alike
- 5. Expecting the Unexpected
- 6. When to Use Object-oriented Programming
- 7. Python Data Structures
- 8. Python Object-oriented Shortcuts
- 9. Strings and Serialization
- 10. The Iterator Pattern
- 11. Python Design Patterns I
- 12. Python Design Patterns II
- 13. Testing Object-oriented Programs
- 14. Concurrency
- 1. Introduction and First Steps – Take a Deep Breath
- 2. Course Module 2: Data Analysis
- 1. Introducing Data Analysis and Libraries
- 2. NumPy Arrays and Vectorized Computation
- 3. Data Analysis with pandas
- 4. Data Visualization
- 5. Time Series
- 6. Interacting with Databases
- 7. Data Analysis Application Examples
- 3. Course Module 3: Data Mining
- 1. Getting Started with Data Mining
- 2. Classifying with scikit-learn Estimators
- 3. Predicting Sports Winners with Decision Trees
- 4. Recommending Movies Using Affinity Analysis
- 5. Extracting Features with Transformers
- 6. Social Media Insight Using Naive Bayes
- 7. Discovering Accounts to Follow Using Graph Mining
- 8. Beating CAPTCHAs with Neural Networks
- 9. Authorship Attribution
- 10. Clustering News Articles
- 11. Classifying Objects in Images Using Deep Learning
- 12. Working with Big Data
- 13. Next Steps…
- Chapter 1 – Getting Started with Data Mining
- Chapter 2 – Classifying with scikit-learn Estimators
- Chapter 3: Predicting Sports Winners with Decision Trees
- Chapter 4 – Recommending Movies Using Affinity Analysis
- Chapter 5 – Extracting Features with Transformers
- Chapter 6 – Social Media Insight Using Naive Bayes
- Chapter 7 – Discovering Accounts to Follow Using Graph Mining
- Chapter 8 – Beating CAPTCHAs with Neural Networks
- Chapter 9 – Authorship Attribution
- Chapter 10 – Clustering News Articles
- Chapter 11 – Classifying Objects in Images Using Deep Learning
- Chapter 12 – Working with Big Data
- More resources
- 4. Course Module 4: Machine Learning
- 1. Giving Computers the Ability to Learn from Data
- How to transform data into knowledge
- The three different types of machine learning
- An introduction to the basic terminology and notations
- A roadmap for building machine learning systems
- Using Python for machine learning
- 2. Training Machine Learning Algorithms for Classification
- 3. A Tour of Machine Learning Classifiers Using scikit-learn
- 4. Building Good Training Sets – Data Preprocessing
- 5. Compressing Data via Dimensionality Reduction
- 6. Learning Best Practices for Model Evaluation and Hyperparameter Tuning
- 7. Combining Different Models for Ensemble Learning
- 8. Predicting Continuous Target Variables with Regression Analysis
- Introducing a simple linear regression model
- Exploring the Housing Dataset
- Implementing an ordinary least squares linear regression model
- Fitting a robust regression model using RANSAC
- Evaluating the performance of linear regression models
- Using regularized methods for regression
- Turning a linear regression model into a curve – polynomial regression
- A. Reflect and Test Yourself! Answers
- Module 2: Data Analysis
- Module 3: Data Mining
- Chapter 1: Getting Started with Data Mining
- Chapter 2: Classifying with scikit-learn Estimators
- Chapter 3: Predicting Sports Winners with Decision Trees
- Chapter 4: Recommending Movies Using Affinity Analysis
- Chapter 5: Extracting Features with Transformers
- Chapter 6: Social Media Insight Using Naive Bayes
- Chapter 7: Discovering Accounts to Follow Using Graph Mining
- Chapter 8: Beating CAPTCHAs with Neural Networks
- Chapter 9: Authorship Attribution
- Chapter 10: Clustering News Articles
- Chapter 11: Classifying Objects in Images Using Deep Learning
- Chapter 12: Working with Big Data
- Module 4: Machine Learning
- Chapter 1: Giving Computers the Ability to Learn from Data
- Chapter 2: Training Machine Learning
- Chapter 3: A Tour of Machine Learning Classifiers Using scikit-learn
- Chapter 4: Building Good Training Sets – Data Preprocessing
- Chapter 5: Compressing Data via Dimensionality Reduction
- Chapter 6: Learning Best Practices for Model Evaluation and Hyperparameter Tuning
- Chapter 7: Combining Different Models for Ensemble Learning
- Chapter 8: Predicting Continuous Target Variables with Regression Analysis
- B. Bibliography
- 1. Giving Computers the Ability to Learn from Data
- Index
Vowpal Wabbit is a great project, providing very fast feature extraction for text-based problems. It comes with a Python wrapper, allowing you to call it from with Python code. Test it out on large datasets, such as the one we used in Chapter 12, Working with Big Data.
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